available at http://www.apache.org/licenses/LICENSE-2.0.html
Open vSwitch
-Copyright (c) 2007, 2008, 2009 Nicira Networks.
+Copyright (c) 2007, 2008, 2009, 2010, 2011 Nicira Networks.
Apache Portable Runtime
Copyright 2008 The Apache Software Foundation.
Portions of this software were developed at the National Center
for Supercomputing Applications (NCSA) at the University of
Illinois at Urbana-Champaign.
+
+lib/ovs.tmac includes troff macros written by Eric S. Raymond
+and Werner Lemberg.